Table 1.
Relationship between Demographic Variables and AUDIT Score Categories and Self-Reported Illicit Drug Use
| All study participants N = 1936 |
Alcohol Use N = 1927 |
Drug Use N = 1885 |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hazardous Drinking N = 434 (22.4%) |
Lower-risk Drinking N = 382 (19.7%) |
Non-drinkers N = 1111 (57.4%) |
Missing N = 9 (0.5%) |
p-value* | Yes N = 324 (16.7%) |
No N = 1561 (80.6%) |
Missing N = 51 (2.6%) |
p-value | ||
| Median (IQR) or Number | Median (IQR) or N (%) | Median (IQR) or N (%) | Median (IQR) or N (%) | Median (IQR) or N (%) | Median (IQR) or N (%) | Median (IQR) or N (%) | Median (IQR) or N (%) | |||
| Demographics** | ||||||||||
| Age, N = 1935 | 16 (14–17) (mean 15.6) | 16 (15–17) (mean 16.1) | 15 (14–17) (mean 15.5) | 16 (14–17) (mean 15.5) | 15 (14–17) (mean 14.9) | 0.003 | 16 (15–17) (mean 16.1) | 16 (14–17) (mean 15.5) | 15 (14–16) (mean 15.4) | < 0.001 |
| Gender | 0.003 | |||||||||
| Male | 904 (46.7%) | 256 (28.3%) | 180 (19.9%) | 464 (51.3%) | 4 (0.4%) | 212 (23.5%) | 671 (74.2%) | 21 (2.3%) | < 0.001 | |
| Female | 1029 (53.2%) | 175 (17.0%) | 202 (19.6%) | 647 (62.9%) | 5 (0.5%) | 110 (10.7%) | 889 (86.4%) | 30 (2.9%) | ||
| Missing | 3 (0%) | 3 (100%) | 0 (0%) | 0 (0%) | 0 (0%) | 2 (0.6%) | 1 (0.1%) | 0 (0%) | ||
| Form in school (range 1–5) | 3 (2–4) (mean 2.9) | 3 (2–4) (mean 3.2) | 3 (2–4) (mean 2.8) | 3 (2–4) (mean 2.8) | 2 (1–2) (mean 1.8) | 0.005 | 4 (2–4) (mean 3.3) | 3 (2–4) (mean 2.9) | 2 (2–3) (mean 2.5) | < 0.001 |
| Form 1 | 402 (20.8%) | 63 (15.7%) | 78 (19.4%) | 257 (63.9%) | 4 (1.0%) | 43 (10.7%) | 350 (87.1%) | 9 (2.2%) | ||
| Form 2 | 371 (19.2%) | 68 (18.3%) | 82 (22.1%) | 218 (58.8%) | 3 (0.8%) | 44 (11.9%) | 304 (81.9%) | 23 (6.2%) | ||
| Form 3 | 360 (18.6%) | 87 (24.2%) | 87 (24.2%) | 185 (51.4%) | 1 (0.2%) | 64 (17.8%). | 289 (80.3%) | 7 (1.9%) | ||
| Form 4 | 566 (29.2%) | 131 (23.1%) | 96 (17.0%) | 338 (59.7%) | 1 (0.2%) | 107 (18.9%) | 448 (79.2%) | 11 (1.9%) | ||
| Form 5 | 237 (12.2%) | 85 (35.9%) | 39 (16.4%) | 113 (47.7%) | 0 (0%) | 66 (27.9%) | 170 (71.7%) | 1 (0.4%) | ||
| School locations | ||||||||||
| Urban | 1173 (60.6%) | 290 (24.7%) | 233 (19.9%) | 641 (54.6%) | 9 (0.8%) | 0.028 | 212 (18.1%) | 928 (79.1%) | 33 (2.8%) | 0.24 |
| Peri-urban | 763 (39.4%) | 144 (18.9%) | 149 (19.5%) | 470 (61.6%) | 0 (0%) | 112 (14.7%) | 633 (83.0%) | 18 (2.4%) | ||
Hazard drinking = AUDIT score “5+”, Low Risk Drinking is AUDIT scores “1,2,3,4”; Non-drinkers is AUDIT score “0” *Significance of differences between group analyzed using ordinal multinomial cumulative logit analysis using GEE methods to adjusted for clustering by school **Significance of differences between group analyzed using univariate binomial logit analysis using GEE methods to adjusted for clustering by school